Paradyne Compshere 3000 Series Installation Manual page 40

COMSPHERE 3000 Series Carrier
Preinstallation Preparations
You will need the following tools:
Phillips screwdriver
Long-nose pliers
1/4 nut driver
5/16 nut driver
WARNING
Turn off the power to the
3000 Series Carrier before you
install the T1 auxiliary
backplane.
"
Procedure
1. Remove the power transformer unit from the front
of the 3000 Series Carrier. Refer to the
Transformer Unit Installation
Chapter 3.
2. Remove the NIM, if present, from the back of the
3000 Series Carrier. Refer to the
section in Chapter 5.
3. Remove the two hexagonal standoffs:
If the T1
auxiliary
backplane will
be mounted
over . . .
Slots 1–8
Slots 9–16
4-2
Power
section in
NIM Installation
Then use the 1/4 nut
driver to remove the
two hexagonal
standoffs from either
side of . . .
Connectors P23 and P24
Connectors P25 and P26
Hexagonal
Standoffs
J1
P26 P25
J2 P22
Installing the T1 Auxiliary Backplane
"
Procedure
1. Determine the screw holes in which to mount the
T1 auxiliary backplane, using the six screws
provided.
The backplane has pointer symbols next to the
center and bottom rows of screw holes.
For the top row, use the same screw holes for
mounting on either side
If mounting
the backplane
on the . . .
Right side of the rear
of the carrier
Left side of the rear of
the carrier
July 1999
P2 3
P2 4
P2 1
P20 P19
P24 P23
J1 P21
496-14878
.
Then use the . . .
Two screw holes with
the pointers facing to
the right ".
Use the holes with the
pointers facing left A .
3000-A2-GA31-D0